Feed-water regulator



(No Model.) 7

L. P. FOSS.

FEED WATER REGULATOR.

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NITED STATES ATENT QFFICE.

LEONARD PETER FOSS, OF KALAMAZOO, MICHIGAN.

FEED-WATER REGULATOR.

$EPECIFICATION forming part of Letters Patent No. 336,307, dated February 16. 1

Application filed December 2, 1885. Serial No. 184,467.

To (ZZZ whom it may concern.-

Be it known that I, LEONARD PETER Foss, of Kalamazoo, in the county of Kalamazoo and State of Michigan, have invented a new and useful Improvement in Feed-Water Regulators for Steam-Boilers, of which the following is a specification, reference being had to the annexed drawings, forming a part thereof, in which- Figure 1 is a side elevation, partly in section, of my improved feed-water regulator. Fig. 2 is a vertical section of the regulatingvalve, taken on line 00 w in Fig. 1.

Similar letters of reference indicate corresponding parts in the different figures of the drawings.

The object of my invention is to provide for steam-boilers afeedwater regulator which shall always maintain a uniform water-level in the boiler.

My invention consists in a valve inserted in the boiler-feed pipe and operated by a float working in a chamber connected with the boiler above and below the water-line. The float-chamber A,which is of suflicient strength to withstand the boiler-pressure, is provided with heads a a, the lower head, a, being furnished with a T, b, which is connected with the boiler B below the water-line by a pipe,

c. The valve (2 is inserted in the T b for removing the water from the float-chamber when desirable. In the upper head, a, of the float-chamber A is inserted a T, e, which communicates with the steam-room of the boiler through the pipe f, and the upper end of the T e is provided with a stuffing-box, g, through which passes a rod, h, carrying on its lower end a float, z, and having on its upper end adjustable nuts j. To the upper head, a, is secured a pillar, is, supporting a valve-casing, l, and an arm, m. The valve-casing l has apassage, 'n,which terminates at the valve-seat o, and which communicates with the discharge of the boiler-feed pump 0 through the pipe 1). A valve,q,passes through a stuffing-box, r, in the top of the casing Z, and is seated upon the seat 0. Above the seat 0 there is a passage, 8, which communicates by the pipe t with the waterspace of the boiler. In the arm at is pivoted a lever, D, carrying on its longer arm (No model.)

a weight, a, and receiving in a slot formed in the shorter arm I that portion of the rod h which is between the nuts 3'. The pump 0 works continuously and discharges under a pressure greater than the pressure of the boiler, and the weight a is adjusted to counterbalance the float i. The water-level in the float-chamber A is always the same as that in the boiler B, so that the movement of the float 2' up and down will always correspond with the rise and fall of the water in the boiler. When the water-level is high,the upper 'nutj leaves the shorter end of the lever D and permits the weight it to hold the valve q to its seat, thus preventing the entrance of water through the valve to the boiler; but when the water-level falls in the boiler it also falls in the float-chamber A, and the float 2' follows it, and when the upper nut j bears upon the shorter arm of the lever D the weight to is counterbalanced, when the water under pressure from the pump 0, passing through the pipe 19, raises the valve q, and passes through the valve-casing and through the pipe 15 into the boiler until the float i is again raised, so as to relieve the shorter arm of the lever D from the weight of the float. Should the water from any cause continue to rise in the boiler, a continued upward movement of the rod h will bring the lower nut j into contact with the under surface of the shorter arm of the lever D, and by pressing the arm upward assist the Weight a in holding the valve (1 to its seat.

By means of my improved regulator the level of the water in the boiler will be constantly maintained at a uniform height, so that priming and the danger of low water will be avoided. I

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a water-regulator for boilers, the combination of the fioatchamber A, connected with the steam and water spaces of the boiler, the float t,rod h,provided with nutsj, weighted lever d, valve q, valve-casing Z, pipes 13 and t, and means for supplying water under pressure to the regulating-valve, as herein specified.

2. The combination, in a water-feed regulator for boilers, of the float-chamber A, having under pressure to the valve, substantially as the heads a and a, Ts e b, pipes f c, the float herein specified.

2', rod h, provided with nuts j, the valve-cas- 1 ing Z, lever D, provided with the adjustable LEONARD PETER FOSS weight-u, the valve q, pipe t, communicating Witnesses; between the valve-casingand the Water-space PETER L. Foss,

of the boiler, and ,means for supplying Water 7 ISAAC N, WATCIQLES; 

